3 years ago

18 + 4(3x - 7) = -70

Mathematics

1 answer:

Elan Coil [88]3 years ago

4 0

If you’re trying to find the value of x it is -5

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If a car’s speed is 70 miles per hour on a road surface with a drag factor of 0.50 and with a breaking efficiency of 85% (n = .8

hichkok12 [17]

Answer:

About 384.3 feet

Step-by-step explanation:

The formula for that is given by,

$S= \sqrt{30 \times d \times f \times n}$

Where,

S is the speed of the car

d is the distance of skid

f is the drag factor for the road surface

n is breaking efficiency as percentage

Putting the values we get,

$S^2= 30 \times d \times f \times n$

$d= \frac{S^2}{30 \times f \times n}$

$d = \frac{70^2}{30 \times 0.50 \times 0.85} = 384.3$ feet

So the length of skid marks would be 384.3 feet.

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Josie has 43 animal books and 29 art books. she puts all the books on 8 shelves. She puts the same number of books on each shelf

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Answer:

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To find the answer, we are first going to add 43 and 29 to get 72. Now, we are going to divide 72 divided by 8 to get 9.

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